Remove src directory - simplify project structure

QWEN.md

@@ -61,15 +61,12 @@ hexo/
 ├── server.js           # Simple HTTP server for development
 ├── .gitignore          # Git ignore rules
 ├── jsdom-pkg/          # Local jsdom library copy
-├── public/             # Web application files
+├── public/             # All application files
 │   ├── index.html      # Main HTML page with start screen
 │   ├── styles.css      # Game UI styles
 │   ├── game.js         # Main game logic and rendering
-│   ├── map.js          # HexMap module (browser version)
+│   ├── map.js          # HexMap module
 │   └── ai-bot.js       # AI bot player logic
-├── src/                # Server-side modules
-│   ├── index.js        # Console demo entry point
-│   └── map.js          # HexMap module (Node.js version)
 └── test/               # Unit tests
     └── map.test.js     # Map and cell tests
 ```